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In&Out / Toothbrush


Do you know how many germs are on your toothbrush?
Have you ever carried a sterlizer with you when travelling?
Taking a sterlizer with you additionally on a business trip or travel is not easy.
Besides, it is rare to find a sterlizer at the destination. The easy-to-carry In&Out, you can always keep yourself clean.

Do you always carry a sterlizer with you?
As a toothbrush is a product you always use, it always needs to be kept clean. However, it is inconvenient to keep a sterlizer in camping.
In&Out has a structure for easy portability and convenient sterlization and recharging when using the toothbrush outside home.


Han-Yang univ.

Han-Yang univ.
Ansan, South Korea

Ha Sang-Soo


Han-Yang univ.

Han-Yang univ.
Ansan, South Korea

Hwang Sung-Hyun Ahn Joong-Geun Jang Sun-Young